Sample_description: S. cerevisiae YSX3 (MATalpha, leu2::LEU2-XYL1, ura3::URA3-XYL2, Ty3::NEO-XYL3) was used in this study. Cells were grown under aerobic or oxygen-limited conditions with glucose or xylose (four conditions). Cells were cultivated aerobically in 200 ml of YP medium with either 20 g/L of glucose or xylose in 1000 ml flasks shaken at 300 rpm and harvested at OD600